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    <title>Document</title>
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    <script>
      // 案例：求数组的最大值和最小值
      let arr = [2, 6, 1, 77, 52, 25, 7];
      let max = arr[0];
      let min = arr[0];
      for (let i = 0; i < arr.length; i++) {
        if (arr[i] > max) {
          max = arr[i];
        }
        min = min < arr[i] ? min : arr[i];
      }
      console.log("max", max, "min", min);
    </script>
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